TXC-04216
Description
The E1 Mapper 16-Channel device is designed for add/drop multiplexer, terminal multiplexer, and dual and single unidirectional ring applications. Four field-proven QE1M Quad E1 Mapper chips are interconnected in a single pact package to permit higher application board densities.
Key Features
- Add/drop sixteen 2.048 Mbit/s signals from an STM-1 VC-4/AU-3, STS-3, or an STS-1
- Independent add and drop bus timing modes
- Selectable HDB3 positive/negative rail or NRZ E1 interface. Performance counter provided for illegal coding violations
- Digital desynchronizers
- J2 16-byte ETSI trail trace parison
- Drop buses are monitored for parity, loss of clock, upstream AIS and H4 multiframe errors
- TU Tandem Connection ETSI message processing and generation
- Performance counters are provided for TU/VT pointer movements, BIP-2 errors and Far End Block Errors (REIs)
- TU/VTs are monitored for Loss Of Pointer, New Data Flags (NDFs), AIS, Remote Defect Indication (RDI), and size errors (S-bits)
- V5 Byte Signal Label Mismatch and Unequipped detection
